Scattered showers Sunday during the final day of Lollapalooza left fan-filled Grant Park wetter and muddier than in years past, organizers said. But clean up won't be as extensive as it was after an epic 2011 rainstorm, said park advocate Bob O'Neill.

Chicago Tribune music critic Greg Kot reviews the first day of Lollapalooza Music Festival.

Chicago Tribune music critic Greg Kot reviews the first day of Lollapalooza Music Festival.

CaptionEating at Lollapalooza with Phil Vettel

Chicago Tribune food critic Phil Vettel tastes a variety of foods offered at this year's Lollapalooza music festival from cheeseburgers to kale salad.

Chicago Tribune food critic Phil Vettel tastes a variety of foods offered at this year's Lollapalooza music festival from cheeseburgers to kale salad.

Under a contract with parks officials, Lollapalooza promoter C3 Presents reimburses the Chicago Park District for repairs associated with the concert. That cost will be assessed later this week after equipment has been loaded out of Grant Park, said Park District spokeswoman Jessica Maxey-Faulkner.

But the tab is unlikely to rise as high as it did in 2011, when C3 paid more than $800,000 after a massive rainstorm poured down on the last day of the three-day event.

Very impressed by C3, they get it. Protect your investment and it will pay for years to come. I will never attend Lolla but I appreciate it's here and what it does for Chicago worldwide. Thank you C3 for being an excellent example of a corporate citizen.

After that year, concertgoers were blocked from entering sensitive planting areas. The park was also evacuated in 2012 during a severe storm. In recent years, the clean-up cost has hovered around $200,000. O'Neill, president of the Grant Park Conservancy, said that number is likely to remain more or less stable.

"One thing that did help is the park was in good condition because we had a lot of rain in May, June and early July," he said. "So the actual turf was in good condition." This is, according to O'Neill, because rain early in the season helps protect the park because the plants are healthier and more resilient, and the roots are more solid, helping to secure the landscaping.

Lindsay Hoffman, C3 Presents marketing manager, said in a statement, "We will not know the full extent of the damage until all stages and activations are loaded out, at which point we will do a thorough walk through with the Chicago Park District to assess the damage and create a remediation plan that will leave Grant Park at or better than it’s pre-festival condition."

Given the amount of rain Chicago typically gets in July and early August, a three-day concert is likely to get at least a few showers,said Gilbert Sebenste, staff meteorologist at Northern Illinois University in DeKalb.

If you’re one of the hundreds of thousands of Grateful Dead fans who got shut out of tickets for the band’s 50th anniversary shows July 3-5 in Soldier Field, promoter Peter Shapiro has some good news for you.

Conan O'Brien entertains hundreds of thousands of people each year. On a recent clandestine trip to Cuba, however, the TBS latenight host had to please just one - and for several harrowing minutes, thought he had failed.

Steven Dietz's play "Yankee Tavern" is a cleverly self-protected piece of writing, a deconstruction of 9/11 conspiracy theories that also airs a good number of them, ranging from the spike in the short-selling of stock in United and American Airlines on Sept. 10, 2001, to the guy who claimed to...

The good news for die-hard Deadheads who got shut out of the Grateful Dead's reunion concerts July 3-5 at Soldier Field when tickets went on sale over the weekend: Tickets are showing up in droves on the secondary market.